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Grit dog
Black Diamond, WA
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valhalla360 wrote: Realistically, how many people drop $70-90k on a truck and go around with it floored at 5,500rpm with a heavy load.
More than just in a stoplight race or a burnout?
Only those that bought a 7.3 gasser to haul their 14k 5ver anywhere in the mountains, because "a diesel is too expensive and unreliable."
LOL
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
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JaxDad
Greater Toronto Area
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pnichols wrote:bobndot wrote:I guess the idea was for the rv engine to get better mpg's.....???
bc it's operating at lower rpms where its tuned to get peak HP and torque at a lower rpm ,
where the fuel injection settings are tuned at peak.
Super Duty chassis with the 7.3 engine is tuned to produce 430 hp at 5,500 rpm. The Premium RV 7.3 is tuned to produce 350 hp at 3,750 rpm.
I think its better suited for the rv which is always hauling its weight where a P/u is not. To have power early on , lower rpm's, is a benefit in an rv.
Hmmm ... other than in drag, or closed course, racing ... what pickup driver (or RV driver) revs their 7.3 V8 to 5,500 rpm?
I'm guessing that the "RV tuned version" of the 7.3 V8 would probably be putting out close to 430 hp too ... at 5,500 rpm.
Granted, more than one person has said I’m not normal, but as a pilot WOT is a pretty normal thing so my 6.3 V8 sees its 6,800 rpm limiter on a pretty regular basis in daily driving.
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DaButcher
texas
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Just in case the standard RV horsepower of the Godzilla engines isn't enough add a couple turbos to get 1100+ HP.
Twin-Turbo Ford 7.3L Godzilla V8 Pumps Out 1,100 Horsepower
2021 Freelander 31MB Class C
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JaxDad
Greater Toronto Area
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“Hey honey, I think it’s time I traded in my old work truck, I’m just going to run down to the Ford store for a bit …… “
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valhalla360
No paticular place.
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Grit dog wrote:valhalla360 wrote: Realistically, how many people drop $70-90k on a truck and go around with it floored at 5,500rpm with a heavy load.
More than just in a stoplight race or a burnout?
Only those that bought a 7.3 gasser to haul their 14k 5ver anywhere in the mountains, because "a diesel is too expensive and unreliable."
LOL
Show me a burnout/drag race where they can get the 7.3 engine up to 5,500rpm with heavy torque to max out the HP.
Yeah, you might be able to force it into a low gear and get up to 5,500rpm but the torque will be way below max available at that rpm. By the time you get up into the higher gears it's tough to get the rpm up that high without hitting max speeds due to wind resistance.
Reality is very few engines will ever develop the max rated HP and most owners don't want to thrash a very expensive new truck, so it's mostly about bragging rights.
Tammy & Mike
Ford F250 V10
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PButler96
Midwest
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valhalla360 wrote:Grit dog wrote:valhalla360 wrote: Realistically, how many people drop $70-90k on a truck and go around with it floored at 5,500rpm with a heavy load.
More than just in a stoplight race or a burnout?
Only those that bought a 7.3 gasser to haul their 14k 5ver anywhere in the mountains, because "a diesel is too expensive and unreliable."
LOL
Show me a burnout/drag race where they can get the 7.3 engine up to 5,500rpm with heavy torque to max out the HP.
Yeah, you might be able to force it into a low gear and get up to 5,500rpm but the torque will be way below max available at that rpm. By the time you get up into the higher gears it's tough to get the rpm up that high without hitting max speeds due to wind resistance.
Reality is very few engines will ever develop the max rated HP and most owners don't want to thrash a very expensive new truck, so it's mostly about bragging rights.
I've taken 3 different GM 2500's with the 6.0 up into 5500 territory regularly in the PA/WV/VA/NC mountains pulling a heavy load, and never hurt any of them. The tachs went to 6000 in each. Let them run up into the 5's when descending in low gears also.
* This post was
edited 08/20/22 02:25pm by PButler96 *
I have a burn barrel in my yard.
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Grit dog
Black Diamond, WA
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valhalla360 wrote:Grit dog wrote:valhalla360 wrote: Realistically, how many people drop $70-90k on a truck and go around with it floored at 5,500rpm with a heavy load.
More than just in a stoplight race or a burnout?
Only those that bought a 7.3 gasser to haul their 14k 5ver anywhere in the mountains, because "a diesel is too expensive and unreliable."
LOL
Show me a burnout/drag race where they can get the 7.3 engine up to 5,500rpm with heavy torque to max out the HP.
Yeah, you might be able to force it into a low gear and get up to 5,500rpm but the torque will be way below max available at that rpm. By the time you get up into the higher gears it's tough to get the rpm up that high without hitting max speeds due to wind resistance.
Reality is very few engines will ever develop the max rated HP and most owners don't want to thrash a very expensive new truck, so it's mostly about bragging rights.
Reality is, I’m not at all sure what you’re saying or the point you’re trying to make, nor do I understand what you’re saying.
I’d have to say every NA gasser truck I’ve ever towed a heavy trailer up a grade with is usually in the upper percentile of useable rpms the whole way up. And sometimes on the way down too.
Power of the truck vs size of load dictates whether it’s hitting the rev limiter and losing speed or able to maintain with some pedal “leftover.”
And what does bobtail speed limited by wind resistance have to do with anything? You drive your pickup 130mph or something? I don’t. I take a fast car if I want to pretend I’m in the Cannonball Run!
Next thing we’ll hear is Sumo springs make a rough riding sticf spring truck ride better, empty….lol
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valhalla360
No paticular place.
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PButler96 wrote:valhalla360 wrote:Grit dog wrote:valhalla360 wrote: Realistically, how many people drop $70-90k on a truck and go around with it floored at 5,500rpm with a heavy load.
More than just in a stoplight race or a burnout?
Only those that bought a 7.3 gasser to haul their 14k 5ver anywhere in the mountains, because "a diesel is too expensive and unreliable."
LOL
Show me a burnout/drag race where they can get the 7.3 engine up to 5,500rpm with heavy torque to max out the HP.
Yeah, you might be able to force it into a low gear and get up to 5,500rpm but the torque will be way below max available at that rpm. By the time you get up into the higher gears it's tough to get the rpm up that high without hitting max speeds due to wind resistance.
Reality is very few engines will ever develop the max rated HP and most owners don't want to thrash a very expensive new truck, so it's mostly about bragging rights.
I've taken 3 different GM 2500's with the 6.0 up into 5500 territory regularly in the PA/WV/VA/NC mountains pulling a heavy load, and never hurt any of them. The tachs went to 6000 in each. Let them run up into the 5's when descending in low gears also.
Wow, uphill, I've never had to go above 3500 RPM with the Ford V10. I'm betting you are a rare exception.
Of course, do it once in a great while, no it won't blow up immediately. Do it daily in commercial operation and don't expect the same longevity out of the engine.
Downhill, I've hit 4000 rpm on occasion but the engine isn't putting out any power under those conditions, so a completely different discussion.
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Grit dog
Black Diamond, WA
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Over 3500 with an old Ford V10, Rare exception? Lol. (Well same for any NA gasser really)
Add some context to that. What are the grades, altitude, load your pulling and how fast?
And is there a head wind?
Or do you just not recognize that there are ALOT of drivers that really work their vehicles?
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JaxDad
Greater Toronto Area
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valhalla360 wrote:PButler96 wrote:valhalla360 wrote:Grit dog wrote:valhalla360 wrote: Realistically, how many people drop $70-90k on a truck and go around with it floored at 5,500rpm with a heavy load.
More than just in a stoplight race or a burnout?
Only those that bought a 7.3 gasser to haul their 14k 5ver anywhere in the mountains, because "a diesel is too expensive and unreliable."
LOL
Show me a burnout/drag race where they can get the 7.3 engine up to 5,500rpm with heavy torque to max out the HP.
Yeah, you might be able to force it into a low gear and get up to 5,500rpm but the torque will be way below max available at that rpm. By the time you get up into the higher gears it's tough to get the rpm up that high without hitting max speeds due to wind resistance.
Reality is very few engines will ever develop the max rated HP and most owners don't want to thrash a very expensive new truck, so it's mostly about bragging rights.
I've taken 3 different GM 2500's with the 6.0 up into 5500 territory regularly in the PA/WV/VA/NC mountains pulling a heavy load, and never hurt any of them. The tachs went to 6000 in each. Let them run up into the 5's when descending in low gears also.
Wow, uphill, I've never had to go above 3500 RPM with the Ford V10. I'm betting you are a rare exception.
Of course, do it once in a great while, no it won't blow up immediately. Do it daily in commercial operation and don't expect the same longevity out of the engine.
Downhill, I've hit 4000 rpm on occasion but the engine isn't putting out any power under those conditions, so a completely different discussion.
With all due respect here friend, that ‘blow it up’ idea is a myth, gas or diesel.
We had several F Super Duty’s (now called the F-450) back in the day that were built with a 5.10 gear set in the rear end, 5th gear, foot to the floor, 65 mph (110 kmh). They rarely had an easy day. Several of them we ran to 350,000+ km (210,000 miles) without any issues. There was a mix of 7.3 diesels and 460’s.
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